Morning or evening?+
Morning suits people who need the day aimed, evening suits people who think better after everything is quiet. The honest answer is whichever one you will still be doing in three weeks. Attach it to something you already do without deciding, like the first coffee.
How many wishes can I hold at once?+
One main one, plus a small second one if it lives in a different part of life. Attention is the whole resource here, and splitting it five ways leaves nothing to spend.
Should I tell people what I am working on?+
Tell one or two people who will ask how it is going. Announcing it widely often delivers the applause before the work, and the wish quietly loses its charge. Keep the audience small and useful.
What if I miss several days?+
Open the notebook and continue on the next line. Nothing resets, nothing is spoiled. The streak is a motivator, not a rule, and treating a gap as failure is the most common reason women stop for good.